baber/WOPTO huggingface dataset:
Patent GB-2031668-A (GB)
Title: Dual polarity excitation control
IPC: H02P7/03
Filed: 1979-09-13
Abstract: A dual polarity excitation control for use with a centre tapped DC source (1) has a high impedance potentiometer (2), the signal from which is amplified (3) prior to being fed to a differential block (4) feeding it selectively to two different amplifier groups, one positive and the other negative, the outlet terminals (7) of which are common so that a load (9) connected thereto and to the centre tap (8) is fed with a current the value and polarity of which depend on the setting of the potentiometer. The gain of the amplifiers (3, 5, 6) is of the order of 10<6>, so that the static current drain through the potentiometer (2) can be very small. <IMAGE>
Patent GB-2032432-A (GB)
Title: Process for preparing terephthalic acid
IPC: C07C51/265
Filed: 1979-09-28
Abstract: Terephthalic acid is prepared by oxidizing a substantially homogeneous liquid reaction mixture, comprising p-toluic acid, optionally in admixture with p-xylene and partially oxidized p-xylene derivatives, 5% to 80% by weight of water, and a catalytically-active metal compound selected from manganese compounds, cobalt compounds and mixtures thereof, with a molecular oxygen-containing gas. At least a minimum amount of M millimoles of the catalytically-active metal compound per kg of the liquid reaction mixture is used, wherein M is defined by the following equation:   <IMAGE> wherein Y represents the molar ratio of water/p-toluic acid in the reaction mixture,  x represents the molar ratio of manganese/total  manganese + cobalt in the catalyst composition   <IMAGE> A equals about 0.200,  B equals about 10.9,  C equals about 4.35; and D equals about 0.0724.t
Patent GB-2059479-A (GB)
Title: Composite prestressing of concrete structures
IPC: E04C5/08
Filed: 1979-10-12
Abstract: In a composite prestressing of a concrete structure, there are prestressed reinforcements and unstressed reinforcements. Both prestressed and unstressed reinforcements are made of the same material which is a steel having a breaking strength between 60 and 120 kg/mm<2>.
Patent GB-2061441-A (GB)
Title: Safety Guard for Portable Powered Drilling Machines
IPC: F16P1/00
Filed: 1979-10-23
Abstract: A safety guard for use with portable drilling machines comprises a chuck guard E which can be adapted to different makes of machine and which can be easily and quickly removed and replaced for the exchange of drills and tools, together with a transparent or substantially transparent tool guard which slides telescopically on the chuck guard and which may be adjusted in position relative thereto. <IMAGE>
Patent GB-2035723-A (GB)
Title: Voltage boosting circuit
IPC: G04G19/02
Filed: 1979-10-31
Abstract: A voltage boosting circuit comprises a first electronic switch device (G10) one side of which is arranged to be connected to a source of a reference voltage (-VssI). A first capacitor (C10) has one side connected to the other side of the first switch device and to a pulse output circuit (TP10, TN10), the pulse output circuit being arranged, in operation, to receive, at an input signal, the voltage appearing at one side of the first capacitor and to produce an output signal which is applied to the first switch device. A second capacitor (C20) has one side connected to one side of a second electronic switch device (G20), the other side of which is connected to the other side of the first switch device so that the second capacitor is charged to a voltage which is higher than the reference voltage. A level shifting circuit (TP30, TP40, TN30, TN40) is connected to receive, at an input signal the voltage appearing on the second capacitor, and to control the second switch device (G20). A clock arrangement produces two clock signals ( PHI 10,  PHI 20) differing in phase and pulse width but of the same frequency. One clock signal ( PHI 10) is applied to the pulse output circuit and the other clock signal is applied to the level shifting circuit. A plurality of such voltage boosting circuits may be connected in series. <IMAGE>
Patent GB-2062561-A (GB)
Title: Pannier and mounting arrangement for cycles
IPC: B62J9/00
Filed: 1979-11-12
Abstract: A rear-mounted pannier 3 has a rectangular frame (55) and a U- shaped bar (60) connected between its outer top edge and pivotal connections at the opposed edges of the back frame with a rod (56) slidably receivable within a channel section (44, 46), either formed in a track section (24, 26) attached to existing cycle carrier racks or formed integrally in a horizontal platform of specially designed carrier racks incorporating the mounting arrangement components. <IMAGE>
Patent GB-2035834-A (GB)
Title: Powder spray booth
IPC: B05B14/435
Filed: 1979-11-20
Abstract: A spray booth (not shown) for powder coating has a self contained power-recovery/filter unit removably attached to and forming the floor 8 of the booth so that it can be replaced by a similar unit when spraying different powders or different colours, or to facilitate cleaning or repair of the unit, without disabling the spraying operation. The unit comprises powder-collection hoppers 14 into which the air flows downwards from the booth via channel 12, the air being then withdrawn through filter elements 16, which are cleaned by reverse flow jets from pipes 25. The air flow channels are wide to avoid confined areas where powder contaminated air could cause an explosion. <IMAGE>
Patent GB-2040284-A (GB)
Title: Process for preparing high stability chloroparaffins and the chloroparaffins so stabilised
IPC: C07C17/395
Filed: 1979-12-06
Abstract: The present invention relates to a process for preparing chloroparaffins of high stability in particular towards heat, characterized in that a chloroparaffin is reacted with one or more hydrochloric acid acceptor compounds under agitation. According to a preferred embodiment of the process of the invention, said chloroparaffin is reacted in the same reaction environment in successive stages with a number of HCl acceptors which have a gradually increasing reactivity towards HCl.
Patent GB-2060786-A (GB)
Title: Pneumatic engine with piston slide
IPC: F01B17/02
Filed: 1979-06-07
Abstract: In a pneumatic engine provided with a piston (2), a piston rod (3) and a piston slide parallel and capable for example of driving piston pump used for atomizing or spraying paints, the slide (13) is actuated by the piston rod (3) towards the end of each stroke of the piston (2) by means of an inversion device. The inversion device comprises an actuating member which effects a reciprocating motion between two stops (18, 19) fixed on the slide. In order to accelerate the inversion of the slide as well as to simplify and reduce the required force for the inversion of the slide, the inversion device comprises only one lever (21) of which the free end is connected to the piston rod (3) by means of a traction spring (29). This freed end of the lever (21) is the actuating member which give pulses to the slide (13) upon running against the stop (18, 19) with individual adjustment. The lever may be a handle supported on both sides and of which the central part forms the actuating member.
Patent GB-2067913-A (GB)
Title: Textile Finishing Catalyst
IPC: C08K3/32
Filed: 1980-01-23
Abstract: Catalysts for finishing of textile materials comprise a mixture of calcium orthophosphate, ammonium orthophosphate, and a complex compound with a general formula of  HÄFe(HPO4)Ü lambda NH4ÄFe(HPO4)2Ü lambda 3H2O  with the following composition (in weight percent):  calcium orthophosphate  70-85  ammonium orthophosphate  10-20  complex compound with a general formula of  HÄFe(HPO4)Ü lambda NH4ÄFe(HPO4)2Ü lambda 3H2O  5-10 The catalysts can be used in impregnation compounds based on amino-containing resins for improving the properties of textile materials of man-made fibers.
Patent GB-2043944-A (GB)
Title: Optical Magnifying Instruments Incorporating Optical Attenuators
IPC: G02F1/055
Filed: 1980-02-06
Abstract: A fast-acting switchable diffusing screen 12 is used to provide protective optical attenuation in an optical magnifying instrument, e.g. a telescopic gun sight or astronomical telescope (shown), in response to high intensity flashes. The screen 12 is positioned across the field of view of part of the optical system of the telescope which has an angle of acceptance smaller than the image field angle of the instrument. Typically the screen 12 will be positioned across the objective lens of the instrument for maximum efficiency, and moderately efficient switched diffuse scattering screens can be used to provide a considerable change in the overall instrument attenuation. In a preferred embodiment, the switched diffusing screen 12 comprises a plate PLZT ceramics material operated in its longitudinal scattering mode by application of switching potentials in a direction perpendicular to its major surfaces. Using this material, switching speeds of less than 50 microseconds can be achieved. <IMAGE>
Patent GB-2051552-A (GB)
Title: Apparatus for conveying rod- like articles
IPC: A24C5/35
Filed: 1980-05-19
Abstract: Apparatus for conveying rod- like articles, especially cigarettes, includes parallel conveyors (6, 8) for streams of articles and two transfer conveyors (26, 50) which together re-orientate articles (2) in one stream for combination with articles (4) in the other stream. The transfer conveyors (26, 50) each convey articles on a curved path having a substantially vertical axis and include guide means (38, 56) for elevating the outer ends of the articles on the path. In another arrangement parallel opposed conveyors (104, 116) deliver articles to a downwardly extending junction (112) provided with retractable conveyor bands (138) which may initially extend across the junction to aid filling. The stream on one (116) of the opposed conveyors may be delivered from a further parallel conveyor (102) by a rotary disc to the other conveyor (114) which turns articles through 180 DEG degrees after delivery to the one conveyor (116). The apparatus is particularly useful for tip-turning of cigarettes at the exit on a filter cigarette assembling machine. <IMAGE>
Patent GB-2051608-A (GB)
Title: Crushing apparatus
IPC: B02C21/02
Filed: 1980-06-06
Abstract: Apparatus for crushing mineral material e.g. coal is incorporated in a scraper-chain conveyor, at the delivery end thereof. The apparatus has a base frame 1 provided with a floor plate 6 which forms part of the conveying surface of the conveyor. A rotary crusher 15 is disposed above, and co-operates with, the floor plate 6 to crush mineral material. The floor plate 6 is constituted by two angularly inclined sections which meet in the working zone 7 of the crusher 15. The base frame 1 is provided with wheeled support means 2, 3 in the region 7 where the two floor plate sections meet. The support means 2, 3 is pivotably connected to the base frame 1 by generally horizontal rams 19. <IMAGE>
Patent GB-2051722-A (GB)
Title: Apparatus for stacking trays or boxes filled with articles, such as eggs
IPC: B65G57/16
Filed: 1980-06-09
Abstract: An apparatus for stacking trays or boxes filled with e.g. eggs comprises a vertically movable elevator (2) or gripper assembly (73) for receiving the filled trays etc. from a transfer device (3). The elevator (2) or gripper assembly (73) and the transfer device (3) are laterally movable relative to one another. In embodiments having an elevator (2), the filled trays etc. are deposited thereon upon being stripped from the transfer device (3) by a stripper (11). The elevator or gripper assembly may be movable vertically within a packing case to stack the filled trays etc. therein. The elevator may comprise a plate, an endless belt or vertical columns for supporting the trays etc. The gripper assembly may comprise clamping arms or corkscrew-like members for holding the trays etc. The transfer device may comprise a roller track, a plate or a belt. <IMAGE>
Patent GB-2061081-A (GB)
Title: Shellfish culture
IPC: A01K61/00
Filed: 1980-10-09
Abstract: A mounting device for use in shellfish culture is provided in which the device (2 or 200) is adapted to be attached to an elongate member such as durable plastic tape (1) and is provided with a base (23 or 203) adapted to be secured by adhesive (3) to the shell of a shellfish, e.g. an oyster (0). Attachment of the device to the tape (1) may be by means of a cross piece (21) inserted through and turned across a slot (10) in the tape (1) or the device is provided with barbs (212) for insertion through an opening (10) in the tape (1) for retentive contact with the latter. In a still further form the device consists of a clip (200) having limbs (202) which are bent about the tape (1), the base (203) of the clip being secured by adhesive (3) to the shell of the oyster (0). <IMAGE>
Patent GB-2067824-A (GB)
Title: A Flexible Coaxial Cable
IPC: H01P1/02
Filed: 1980-12-04
Abstract: A flexible coaxial cable is provided having a portion bent to a rigid desired radius and angle at a particular desired location. Transmission of high frequency signals through the bend is achieved without deterioration of the electrical characteristics of the cable. To make the bent cable portion, the outer jacket 4 of the coaxial cable is stripped at the desired bend location and a hardening material 6 is applied around the bent portion to firmly affix the desired bend radius and angle. The hardening material is preferable solder or a resin based adhesive. <IMAGE>
Patent GB-2090562-A (GB)
Title: Reflective pictorial sheet
IPC: A47G1/02
Filed: 1981-01-06
Abstract: A transparent sheet (10) is provided with an image (12.1) on one surface and an overlying light reflective layer (16) on the same surface of the sheet. The sheet (10) may be a glass sheet or synthetic plastic and the reflective layer (16) may be a metallic silver coating or foil. The image (12.1) may comprise spraying coatings of varying intensity pigment and covered by a translucent or coloured epoxy protective coating (14) prior to applying reflective layer (16). <IMAGE>
Patent GB-2070419-A (GB)
Title: Slicing machines
IPC: B26D5/08
Filed: 1981-01-13
Abstract: A slicing machine with a variable speed rotatory knife blade 12 for comestible products comprises a reciprocable table for holding the product to be sliced, a rotary knife blade (12) with respect to which the table is reciprocated during use, a fence plate for regulating the thickness of cut product slices and a tray for receiving the cut slices. Blade (12) is rotatably driven by a variable speed drive mechanism (20) having a speed selector (21) positioned on housing of the machine for manual operation by a machine user. In one form Fig. 2 mechanism (20) comprises an electronically variable speed motor (19, 24) connected to the knife blade via a fixed transmission (25) and in another form, Fig. 3, mechanism (20) comprises a constant speed motor (19) connected to knife blade (12) via a variable transmission (28). <IMAGE>
Patent GB-2068958-A (GB)
Title: 7-(2-amino-4-thiazolyl) or Acetamido Cephalosporins
IPC: C07D277/20
Filed: 1981-02-10
Abstract: <IMAGE>      R and R11 are hydrogen; alkali metal; R1 and R2 are independently selected from the group consisting of hydrogen- methyl, ethyl, n-propyl and i-propyl;  R4 is in the a-configuration and is hydrogen or methoxy;  R5 is hydrogen or lower alkyl;  R6 is lower alkyl;  R7 is hydrogen, -OCOCH3, -OCONH2,   <IMAGE> or   <IMAGE> R9 is hydrogen or -CONH2;  R10 is hydrogen or a protecting group;  R12 is hydrogen or lower alkyl;  R13 is hydrogen, lower alkyl,   <IMAGE> or -CH2)p-N-(lower alkyl)2;  R14 is hydrogen, sodium or potassium;  n is 0, 1 or 2;  m is 0, 1 or 2;  p is 1, 2, 3 or 4. These compounds are useful antibacterial agents.
Patent GB-2080097-A (GB)
Title: Appliance for cooking various foods
IPC: A47J37/06
Filed: 1981-06-25
Abstract: An appliance for cooking various foods, constitutes a base (1) and a hot plate (2) spaced thereabove by bearers (3), (4) preferably provided with handles (5), (6). The hot plate (2) has, on its underside, an open inner cavity (7) wherein there are disposed electric heating resistors (8), the walls (9) of this cavity allowing the emitted heat to be reflected towards the base (1). The vertical bearers (3), (4) connecting the base (1) to the hot plate (2) are disposed face to face and partly enclose the space comprised between the base (1) and the hot plate (2) thereabove so as to form an open channel, having an inner reflecting surface (10), (11) whereby food may be grilled within the cavity and/or on the plate (2). <IMAGE>
Patent GB-2080622-A (GB)
Title: Device for cold or warm storage
IPC: F25D9/00
Filed: 1980-12-05
Abstract: A thermo-electric heat pump serving to cool or to heat a thermally insulated storage space (cupboard, box, tank, etc.) comprises two or more identical units (15, 16, Fig. 3) or groups, each of which transmits a portion of the heat flow. The units or groups are operated by a common source of direct current, for instance a storage battery, to which they are connected by means of a changeover switch (b) either in parallel with each other, for swift cooling or heating of the storage space to a desired storage temperature, or in series with each other, when a steady-state condition is to be maintained.
Patent GB-2106074-A (GB)
Title: Workplatform
Inventor: STOUTEN JOHN HENDRIK WILLEM ME
IPC: B66F11/04
Filed: 1981-08-13
Abstract: A workplatform (10) for providing access beneath deck level (30) has a support structure comprising a first arm (16) capable of rotation by motor (18) about a vertical axis and is suspended at an adjustable height (60) beneath the deck level (30) with a second arm (14) pivotably mounted on the end of the first arm (16) and supporting the workplatform (10). As shown the first arm (16) is formed of several telescopic sections and is secured to the lower end of a telescopic support column (19) which is rotatable by allowing ring and motor (24) about a vertical axis. The first arm (16) can be pivotably secured to the support column (19) and if the workplatform (10) is to be stored above deck level (30), then a retraction mechanism (40) is provided. The workplatform (10) has the degrees of freedom illustrated by the phantom lines and by the arrows designated 20, 52, 60, 62 and 64. <IMAGE>
Patent GB-2084321-A (GB)
Title: Apparatus for Measuring Respiratory Replacement
IPC: G01N33/497
Filed: 1981-09-17
Abstract: Instead of sampling only the exhaled gases a collector 30 is positioned adjacent to but spaced from the patient's mouth and nose and draws in at a constant rate ambient atmosphere. Exhalation gives rise to collection of expired gases also. The collected gases are analysed at 37, 38 for carbon dioxide and oxygen concentrations and the results used with the value of the constant flow rate in arithmetic units 35, 36. The constant flow rate can be ensured by means of a flow control valve (32) or by using a constant volume pump. A flowmeter 31 is optional. <IMAGE>
Patent GB-2099712-A (GB)
Title: A remote controlled toy vehicle and trackway with switching mechanism
IPC: A63H19/24
Filed: 1981-11-02
Abstract: An amusement device consists of a remote-control radio signal transmitter, a trackway and a remote- controlled toy vehicle. The trackway has a track crossing (14), a track switching element (16) pivotally mounted at the crossing for allowing the toy vehicle to move between the first and the second or third trackway sections as the toy vehicle reaches the crossing. A trackway mechanical actuator mechanism for moving the track switching element from one position to the other has an actuator member (88) extending upwardly adjacent the crossing from the first trackway section. The remote- controlled toy vehicle includes a lever arm (62) pivotally mounted in the bottom of the toy vehicle for selective movement to an extended position toward the trackway for engagement with the trackway actuator member (88) and an electro- mechanical actuator mechanism for actuating the lever arm in response to predetermined toy vehicle speed control signals received from the transmitter. <IMAGE>
Patent GB-2091006-A (GB)
Title: Forehearth heating system using immersed electrodes
IPC: H05B3/00
Filed: 1981-12-04
Abstract: A forehearth heating system comprises two sets of electrodes (12a, 12b) extending into a moving mass of glass to be heated. The two sets of electrodes (12a, 12b) are connected respectively to the ends of the secondary winding (16) of a transformer (18). In order to eliminate D.C. voltages which develop on the electrodes (12a, 12b), the secondary winding (16) has an earthed centre- tap and there is provided a control means (26, 28, 30) which senses the magnitude and polarity of the D.C. voltages, generates an electrical signal of opposite polarity, and injects same at a location and at a magnitude such as to reduce said sensed voltages to zero. In one embodiment (Fig. 4), the signal is injected into the glass by an additional electrode (12e) to cause currents to flow to earth via the two sets of electrodes and the associated transformer winding halves, the magnitude of these two currents being such as to reduce the D.C. voltage at the electrodes to zero. In another embodiment (Fig. 5) the signal is introduced into the earth line of the transformer (18). <IMAGE>
Patent GB-2091829-A (GB)
Title: Improvements in hydraulic anti-skid braking systems for vehicles
IPC: B60T8/1761
Filed: 1982-01-13
Abstract: An anti-skid braking system for a four wheel vehicle having brakes on the front wheels (1, 2) and rear wheels (3, 4) is disclosed. Each front wheel brake is adapted to be applied by at least two actuators (5, 6; 7, 8) of similar size, and each rear wheel brake is adapted to be applied by at least one actuator (9, 10). The system comprises first and second brake-applying circuits. The first circuit comprises a first source (12) of brake- applying fluid, and a first connection between the first source (12) and one actuator (5, 7) for each front wheel brake (1, 2) and the actuator (10) for one of the rear wheel brakes, and the second circuit comprises a second source (13) of brake-applying fluid, and a second connection between the second source (13) and the other actuator (6, 8) for each front wheel brake (1, 2) and the actuator (9) of the other of the rear wheel brakes. First and second modulators (16, 15) are provided for modulating the supply of fluid from the first and second sources (12, 13) only to the respective actuators (7, 6) of different front wheel brakes (1, 2), and third and fourth modulators (14, 17) are provided for modulating the supply of fluid from the first and second sources (12, 13) to the remaining respective actuators (5, 8) of the front wheel brakes and to the actuators (10, 9) of the diagonally opposite rear wheel brakes (4, 3). Two skid sensors (18, 19) are each adapted to provide a skid signal dependent upon the behaviour of the respective one of the front wheels (1, 2), and a control module (19) is adapted to operate one or more of the four modulators (14, 15, 16, 17) in accordance with the nature and magnitude of the skid signal or signals. <IMAGE>
Patent GB-2101888-A (GB)
Title: Vegetable/animal extracts
Inventor: DOLEZEL BEDRICH
IPC: A61K35/14
Filed: 1982-07-07
Abstract: For the therapy and regeneration of cells in live organisms by extraction from an animal or vegetable tissue, the tissue is exposed to ethanol for 3 to 100 days at a temperature of 10-100 DEG C, preferably 70-85 DEG C. The thus obtained extract is further concentrated to 5-50% of its original volume; the concentrate is precipitated by ether; the precipitate is washed with ether, dried and dissolved in a solvent. Prior to extraction by 40-98% ethanol, the tissue is dried and comminuted. The ethanol extraction can also be performed in a multistage process, the extracts from the individual stages being intermixed before being concentrated. The animal tissue used is bovine blood or a mixture of cow and bull blood which, prior to its extraction by 85-98% ethanol, is dried at a temperature of 30-100 DEG C in an air stream, herring spawn or sperm; and the vegetable tissue is St John's wort herb.